We CAN walk through walls since we're only 0.01% s

[bicycle]

Premise 1: Atoms are made up of 99.99% empty space, or nothingness.

Premise 2: We humans are composed entirely of atoms

Conclusion: Humans are made up of 99.99% emptiness.

Don't you think that just once someone accidentally bumped into a wall, the emptiness of the atoms lined up perfectly, and they "fell" through? Of course, the chances of that happening are like 1 in 1,000,000,000,000,000,000,000, and that's only if you're considering walking through a single two-dinmensional plane. But it's possible, right?

[revolutionary_jam]

yeah but you have to get through the magnetism etc etc etc

[rossus]

i'm really bad at science...
but according to your theory... for 2d "objects" with a width of only 1 layer of atoms... it's possible to fall through eachother.
but for 3d structures with several million layers of atoms stacked on eachother it would be a bit difficult.
the object and the wall would have to spin around eachother like a very complicated rubix-cube before it could work.

http://blogs.ocregister.com/sciencedude/Rubiks_cube.jpg

why are you asking, are you planning to rob a vault?

[malvern]

It's all about telling your particels to let the particles of the wall share the empty space... thats the hard part.. they will not share the empty space


freedom:):D

[razed1]

the same force that holds/attracts atoms together, is whats holding you together

so with this in mind, could we not change the polarity of our forcefield

kinda like "decloaking" in star trek??


methinks maybe?

[edit]

---------------Putting a few atoms together: molecules

---------------http://users.aber.ac.uk/ruw/teach/235/lcao.gif
(...)The number of hybrid states generated is always the same as the number of states making up the hybrid. Only states with (nearly) the same energy can be hybridised. This becomes clear when looking at the wave functions of states with different n: Their wave functions have maxima at very different distances from the nucleus, so they don't match very well.

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>>
Linear combinations (http://users.aber.ac.uk/ruw/teach/235/lcao.html)

Physics Help and Math Help - Physics Forums > Physics > Atomic, Solid State, Comp. Physics
What % of an atom is empty? (http://www.physicsforums.com/showthread.php?t=74297)
?05-04-2005, 01:55 PM #1
PIT2 :


--------------------- What % of an atom is empty?

--------------------------------------------------------------------------

Recently i read:

"atoms turn out to be 99.99999999% empty space"

(source: http://www.futurehi.net/docs/Reality_Consciousness.html )

Is this correct?
Does a more accurate measurement of the percentage of empty space in an atom exist?





05-04-2005, 02:09 PM #2

chroot :
The volume of an atom (roughly 1 angstrom, or 10^-10 m in diameter) is about 15 orders of magnitude larger than the volume of a nucleon (roughly 1 fm, or 10^-15 m in diameter). It seems rather silly to express that ratio in percentage, but it would be 99.9999999999999% (13 nines after the decimal point).

Of course, the radius of a nucleon is not an absolute figure, since there really is no concept of 'radius' in quantum mechanics. 1 femtometer is a reasonable value. If you're wondering whether anyone has gone out and made a more precise measurement of the size of a nucleon, the answer is no: there's really no such thing as a precise measurement of the size of a nucleon.

- Warren




05-04-2005, 02:34 PM #3
PIT2 :
Someone told me that, for instance, the nucleus of a hydrogen atom consists of 3 quarks. But that these quarks are considered 'points'.

If these quarks are 'points', does that imply the nucleon is 99.99i (i=infinite) empty?




05-04-2005, 02:38 PM #4
chroot :
The quarks are regarded as being "point" particles, as are electrons. The nucleons, composed of quarks, do indeed have size, since the quarks they contain never get too close to each other. (This is analogous to the way electrons do not fall into the nucleus -- quantum mechanics forbids it.)

In the end, if everything in the world is fundamentally composed of point particles, then everything is really entirely "empty" -- the notion of size is then just defined by the distance between such points. This may, in fact, be completely true.

- Warren




05-04-2005, 11:14 PM #5
Andrew Mason_
Recognitions:
Homework Helper
:
Originally Posted by PIT2
Recently i read:

"atoms turn out to be 99.99999999% empty space"

(source: http://www.futurehi.net/docs/Reality_Consciousness.html )

Is this correct?
Does a more accurate measurement of the percentage of empty space in an atom exist?

You first have to define what you mean by empty space. To do that, you have to define what you mean by space that is not empty - ie. what does it mean for space to be full or occupied?

Most of the space occupied by an atom is inaccessible to other atoms due to the electrical forces between atoms. But it is quite accessible to a freely moving neutron. Most of the space inside the neutrons and protons in the nucleus is inaccessible to all atomic matter. But that space is quite accessible to a neutrino. Whether space is 'empty' or 'occupied' depends on what it is you are trying to penetrate it with.

In fact, there is no such thing as a 'solid' particle. Solidity is a macroscopic concept. At the atomic level, solidity has no meaning.

AM


05-05-2005, 06:26 AM #6
PIT2 :
I guess with empty space i mean... um... i dont know really. Any definition i can come up with seems to be flawed.

Anyway thanks for the answers, things are a little bit more clear to me now.

Physics Help and Math Help - Physics Forums > Physics > Atomic, Solid State, Comp. Physics
energy band in solid
View Full Version : energy band in solid (http://www.physicsforums.com/showthread.php?t=186291)


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meo_hallo09-22-2007, 07:10 AM
hi !

In a crystal net.When i put 2 or many atom nearly.It's electron's energy will become energy band.(view attached image (http://www.physicsforums.com/attachment.php?attachmentid=10973&d=1190466617))

why?
what is a essential of this phenonmenon?

thanks!

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genneth09-22-2007, 07:26 AM
When two orbitals interact, you end up with two different orbitals, one which is of lower energy, one which is of higher energy. Look up "bonding" and "anti-bonding" on Google. You can derive the effect with quantum mechanics pretty easily.

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meo_hallo09-22-2007, 08:03 AM
thanks!
but i feel not easily.
Informations on Google is so much..

what is a essential? identical particle? or peturbation theory?
Do you help me about essential of this phenomenon? thanks !

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armandowww09-22-2007, 09:18 AM
First of all, I suggest you to disregard the figure you referred to. It could only makes things more complicated than they really are. In atomic physics, emission/absorbtion spectra are experimentally obtained using lamps based on gases under low pressure. Low pressure allows to consider single particles as free, i.e. not interacting. For this reason atoms are dealt with as isolated. The electomagnetic spectra result on the allowed transitions between electronic states of the atomic system. Now, the more probable a transition is, the more loud is the intensity for corresondent line you see in the spectrum (I suggest to search Balmer series in google images). This is because every atom in the gas is behaving the same way as long as gas is made of identical particles. This issue is known as the "degeneration" in the gas or, better, in its energy spectrum.

Now, let the pressure rise up. What does it change in the spectrum? Experience tells us that lines in the spectrum becomes less narrow than before. It is a really gradual process but is a matter of fact. We talk of this other phenomenon as of the "degeneration removal". It results on the interactions between particles (first weaker and than stronger and stronger as pressure grows up). So, system behaviour is really sensitive to whatever interactions are present.

Quantitatively, physists are used to face this kind of problem, beginning from results given for simplest ones (free particle gas) and than applying where possible "perturbations" to the system (strongly interacting gas).

It is very easy to forecast what happend in a phase transition from a gas to a system even more interacting like a liquid or a solid.

The result you can argue with me is that the degeneration in the energy spectrum is defintely removed and the energy levels (lines in spectrum) are much less intense and narrow. More precisely, for a crystal system, you will find out a continuum of values caused by interactions and its periodical properties. They're referred to as energy bands of the electronic states of a crystal.

This theory is really powerful because it can justify many properties of the cristal (optical, electrical, thermal... ).

Solid state physics is one of the most meaningful (and clearly the most ordinary as the system it deals with) proof for the validation of quantum mechanics!

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meopemuk09-22-2007, 01:10 PM
In a crystal net.When i put 2 or many atom nearly.It's electron's energy will become energy band.(view attached image)

why?
what is a essential of this phenonmenon?


Consider quantum-mechanical problem about a particle (electron) in a potential well (atom). Suppose that you solved this problem and found a discrete spectrum of ehenrgy eigenvalues. Now, consider another problem in which there are two potential wells at some distance. It is not difficult to show that the energy spectrum of this system will be similar to the spectrum of the one-well system. The major difference is that each energy level now splits into two close energy levels. The separation between the two energy levels is determined by the strength of interaction of the electron in the well 1 with the potential created by the well 2. So, the separation increases when the two wells move closer together.

You can repeat the same logic for 3, 4, ..., infinite number of wells. The later case is a model of the crystal. In this model each atomic level has transformed in an infinite set of closely-packed levels, i.e., the energy band.

Eugene.

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[IMG http://users.aber.ac.uk/ruw/teach/235/hybrid.png

[majicdragon]

It's all about telling your particels to let the particles of the wall share the empty space... thats the hard part.. they will not share the empty space


freedom:):D

Video Please.

[majicdragon]

Look at outer space. There we have just discovered the Sagittarius Elliptical Galaxy, aka SAG DEG. Supposing SAG DEG is part of your finger passing through Some other object of which the Milky Way is native...

? Just Do It; suppose it.

Are you looking for the answers?... Keep looking.

You do that and I'll be right here... trying to stick my finger through the desk.

[lemonique]

Premise 1: Atoms are made up of 99.99% empty space, or nothingness.

Premise 2: We humans are composed entirely of atoms

Conclusion: Humans are made up of 99.99% emptiness.

Don't you think that just once someone accidentally bumped into a wall, the emptiness of the atoms lined up perfectly, and they "fell" through? Of course, the chances of that happening are like 1 in 1,000,000,000,000,000,000,000, and that's only if you're considering walking through a single two-dinmensional plane. But it's possible, right?

Hi bicycle, I don't know about going through the wall in the flesh. A few years ago I had an OBE where I got out of bed to go (you know where) and went to the main light switch to turn the light on only to discover that I couldn't turn it on. My hand kept going into the wall!! I finally realized I was in Spirit and zapped right back into bed :)
So one day I guess we'll all be able to go through walls.

Cheers
Lem

[eternal_spirit]

The Book the men who stare at goats by Jon Ronson part of that is about the Military and there experiments of walking through walls. Try a search you may find the method of how others claim to have done this.

[whitenight639]

looking at the above, you would be able to walk thru walls apart from 2 things:
the electron in any given atom is in a state of flux, in that it 'orbits' the protons and neutron and is moving so fast it is effectivly everywhere at once (within a certain radius know as an electron shell), and also the atoms of ourself s take our skin for example never actually touch another atom! because around every atom exists an electrostatic repulsion, so when u cut paper with sharp scissors its not the metal atoms of the scissor blade slicing thru paper there is always a very small gap, the electrostatic force is what cuts the paper!